2022 TUNDRA Award Recipients
Morag Clinton
Project: Investigating Emerging Diseases in Arctic Fish
I am an Assistant Professor in the Department of Veterinary Medicine at the University of ÀÖ»¢Ö±²¥ Fairbanks (UAF), where I teach classes in veterinary functional anatomy and aquatic animal health, as well as studying fish health and pathology. My research interests are primarily in disease diagnostics and the health of marine and freshwater fish. Using molecular techniques and classic pathology, I seek to understand the etiology and consequences of disease in the aquatic environment. My PhD studies focused on the infectious and environmental factors that lead to gill disease in Atlantic salmon, and prior to joining UAF, I was the veterinary aquatic pathologist for the UK government agency Cefas (Centre for Environment Fisheries and Aquaculture Science). This work involved a lot of disease surveillance, identifying the causative agents behind disease outbreaks, and even describing novel disease conditions in fish.
Climate change presents a challenge to aquatic animals across the world, but particularly in the rapidly changing circumpolar north. Since joining UAF, a lot of my work has centered around studying the health challenges to ÀÖ»¢Ö±²¥â€™s fish stocks. At Toolik I will be performing fish health assessments and disease screens on a range of freshwater species, providing important data regarding current pathogenic challenges to Arctic fish stocks. Emerging diseases and altered pathogen ranges with climate change pose a critical risk to wildlife populations, but hopefully through enhanced surveillance, such as my efforts facilitated by the TUNDRA award, any changes can be identified early.
Alex Michaud
Project: MICRO-SWEAT: Microbial Sources of Weathering in Emerging Arctic Thermokarst
I'm currently a Research Scientist at Bigelow Laboratory for Ocean Sciences in East
Boothbay, Maine. Conducting the field work for this TUNDRA award is a long time in
the making. Looking back at the files, this proposal was submitted on 16 March 2020,
ominous timing for an early career researcher looking to collect data on an up-and-coming
project! The willingness and flexibility of Toolik Field Station to accommodate this
award in 2022 is remarkable. I'm grateful to TFS for making this work a reality. My
research focuses on how the loss of ice impacts the spatial and temporal patterns
of microbially mediated biogeochemical cycles. This project is an extension of that
theme as it looks at how retrogressive thaw slumps, areas of tundra disturbance due
to rapid melting and collapse of ground-ice rich permafrost, transform the tundra
and downstream aquatic ecosystems. In particular, the project will examine the role
of microorganisms in releasing nutrients (i.e., iron, phosphate) from these natural
disturbance features.
*2020 recipient, postponed to 2022 due to COVID
Chelsea Smith
Project: Stabilization of Organic Carbon in Iron Complexes Buried in Toolik Lake Sediment
I am a PhD candidate in the Biological Sciences department at Kent State University.
I received a BS (2014) and MS (2016) in Biology from the University of Akron. My past
research focused on the interplay of evolutionary forces and its effects on bacterial
populations. My PhD research centers on microbe-mineral interactions and nutrient
biogeochemistry and aims to investigate biogeochemical controls on phosphate availability
under contrasting redox conditions of arctic and temperate soils.
The TUNDRA award will support research used in an NSF postdoc fellowship proposal focusing on the vulnerability and fate of organic carbon:iron (OC:Fe) complexes in arctic lake sediments to assess carbon (C) stabilization mechanisms. Arctic lake sediments have been known to act as C sinks. However, continued rise of potent greenhouse gases like methane and carbon dioxide, exacerbate warming, potentially forcing these arctic lakes to shift from a C sink to C source. Elevated temperatures increase permafrost thaw causing more runoff and nutrient release from the landscape. This combination of increased nutrient concentrations and elevated temperature can result in cyanobacterial blooms, providing inputs of fresh carbon to lakebed sediments. This C can either be quickly respired by microbes, or may be stabilized through the co-precipitation with iron oxides, thereby protecting it through deposition and burial. This work will investigate the importance of reactive iron in facilitating C stabilization through a coupled benthic-pelagic biogeochemical study in Toolik Lake. Understanding the fate of lakebed C continues to grow in importance as climate change places more stress on these susceptible landscapes.
Megan Wilcots
Project: Assessing the effects of increasing nutrient availability on CO2 fluxes in the ÀÖ»¢Ö±²¥n Arctic
My name is Megan Wilcots (she/her), and I’m currently a 4th year graduate student
at the University of Minnesota. I work with Dr. Sarah Hobbie and Dr. Elizabeth Borer,
and my research focuses on the shape of plant and ecosystem responses to different
rates of nitrogen addition. The TUNDRA award is supporting my research this summer,
which focuses on identifying how rates of net carbon uptake change across the growing
season in some of the Arctic LTER nutrient manipulation plots. My first summer at
Toolik was in 2017 as an undergraduate with Team Vole, and I returned to Toolik last
summer to start my current project. I also work at Cedar Creek Ecosystem Science Reserve
in Minnesota, where I conducted research in 2019 and 2020. I currently serve as the
DEIJ Graduate Fellow at Cedar Creek, and I have really enjoyed working with Haley
and other members of the community to work on DEIJ issues here at Toolik as well.
How Can You Help?
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